LS4393 Single N-Channel JFET switch
Linear Systems replaces discontinued Siliconix PN4393
FEATURES DIRECT REPLACEMENT FOR SILICONIX PN4393 LOW ON RESISTANCE rDS(on) ≤ 100Ω LOW GATE OPERATING CURRENT ID(off) = 5pA FAST SWITCHING t(ON) ≤= 15ns LS4393 Benefits: ABSOLUTE MAXIMUM RATINGS1 @ 25°C (unless otherwise noted) Low Error Voltage Maximum Temperatures High-Speed Analog Circuit Performance Storage Temperature ‐65°C to +200°C Negligible “Off-Error,” Excellent Accuracy Good Frequency Response, Low Glitches Operating Junction Temperature ‐55°C to +200°C Eliminates Additional Buffering Maximum Power Dissipation Continuous Power Dissipation 350mW LS4393 Applications: MAXIMUM CURRENT Analog Switches Gate Current (Note 1) IG = 50mA Choppers, Sample-and-Hold MAXIMUM VOLTAGES Normally “On” Switches, Current Limiters Gate to Drain Voltage / Gate to Source Voltage ‐40V LS4393 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC MIN TYP. MAX UNITS CONDITIONS BVGSS Gate to Source Breakdown Voltage ‐40 ‐‐ ‐‐ IG = ‐1µA, VDS = 0V V VGS(off) Gate to Source Cutoff Voltage ‐0.5 ‐‐ ‐3 VDS = 20V, ID = 1nA VGS(F) Gate to Source Forward Voltage ‐‐ 0.7 1 IG = 1mA, VDS = 0V VDS(on) Drain to Source On Voltage ‐‐ 0.25 0.4 VGS = 0V, ID = 3mA VDS(on) Drain to Source On Voltage ‐‐ 0.3 ‐‐ VGS = 0V, ID = 6mA VDS(on) Drain to Source On Voltage ‐‐ 0.35 ‐‐ VGS = 0V, ID = 12mA IDSS Drain to Source Saturation Current2 5 ‐‐ 60 mA VDS = 20V, VGS = 0V IGSS Gate Reverse Current ‐‐ ‐5 ‐1000 VGS = ‐20V, VDS = 0V IG Gate Operating Current ‐‐ ‐5 ‐‐ VDG = 15V, ID = 10mA pA ‐‐ 5 100 VDS = 20V, VGS = ‐5V Drain Cutoff Current ID(off) ‐‐ 5 ‐‐ VDS = 20V, VGS = ‐7V ‐‐ 5 ‐‐ VDS = 20V, VGS = ‐12V rDS(on) Drain to Source On Resistance ‐‐ ‐‐ 100 Ω VGS = 0V, ID = 1mA LS4393 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) SYMBOL CHARACTERISTIC TYP MIN MAX UNITS CONDITIONS The LS4393 features many of the superior characteristics of JFETs which make it a good choice for demanding analog switching applications and for specialized amplifier circuits. gfs gos rds(on) Ciss Crss Crss Crss en SYMBOL td(on) tr td(off) tf Equivalent Input Noise Voltage CHARACTERISTIC Turn On Time Turn Off Time
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Forward Transconductance Output Conductance Input Capacitance Reverse Transfer Capacitance 6 ‐‐ ‐‐ mS µS Ω pF 25 ‐‐ 12 3.5 3.4 3.0 3 TYP 2 2 6 13 ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ MIN ‐‐ ‐‐ ‐‐ ‐‐ ‐‐ Drain to Source On Resistance ‐‐ 100 16 5 ‐‐ ‐‐ ‐‐ MAX 15 5 50 30 nV/√Hz UNITS ns CONDITIONS
VDS = 20V, ID = 1mA, f = 1kHz VDS = 20V, ID = 1mA, f = 1kHz VGS = 0V, ID = 0A, f = 1kHz
VDS = 20V, VGS = 0V, f = 1MHz VDS = 0V, VGS = ‐5V, f = 1MHz VDS = 0V, VGS = ‐7V, f = 1MHz VDS = 0V, VGS = ‐12V, f = 1MHz VDS = 10V, ID = 10mA, f = 1kHz
LS4393 SWITCHING ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted) VDD = 10V, VGS(H) = 0V
Notes: 1. Absolute ratings are limiting values above which serviceability may be impaired 2. Pulse test: PW ≤ 300µs, Duty Cycle ≤ 3% LS4393 SWITCHING CIRCUIT PARAMETERS SWITCHING CIRCUIT TO-92 (Bottom View) RL 3200Ω ID(on) 3mA Available Packages: LS4393 in TO-92 LS4393 in bare die. Contact Micross for full package and die dimensions VGS(L) ‐5V Micross Components Europe
Tel: +44 1603 788967 Email: chipcomponents@micross.com Web: http://www.micross.com/distribution
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